A143313 Triangle read by rows, A130540 * A000012, 1<=k<=n.
1, 4, 1, 5, 1, 1, 11, 4, 1, 1, 7, 1, 1, 1, 1, 20, 8, 4, 1, 1, 19, 1, 1, 1, 1, 1, 1, 26, 11, 4, 4, 1, 1, 1, 1, 18, 5, 5, 1, 1, 1, 1, 1, 1, 28, 10, 4, 4, 4, 1, 1, 1, 1, 1, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 55, 27, 15, 8, 4, 4, 1, 1, 1, 1, 1, 1, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
Offset: 1
Examples
First few rows of the triangle = 1; 4, 1; 5, 1, 1; 11, 4, 1, 1; 7, 1, 1, 1, 1; 20, 8, 4, 1, 1, 1; 9, 1, 1, 1, 1, 1, 1; ... Row 4 = (11, 4, 1, 1) since row 4 of A130540 = (7, 3, 0, 1).
Comments